[BUG] VS Code extension v2.1.140 missing auto mode UI/setting for Max plan users (CLI works)

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

The Claude Code VS Code extension v2.1.140 does not expose auto mode in the UI or as a configuration setting, even though the CLI of the same version supports it and my account is eligible (Max plan, direct through Anthropic, on Opus 4.7).

Specifically:

• No "Enable auto mode" toggle exists in Settings → Extensions → Claude Code (only "Allow Dangerously Skip Permissions" and "Initial Permission Mode" with options: default, acceptEdits, plan, bypassPermissions — no "auto" option)
• Shift+Tab in an extension session does not cycle to an auto mode option
• The extension's model picker only shows Default (Opus 4.6 with 1M context), Sonnet 4.6, and Haiku 4.5 — Opus 4.7 is not selectable
• Manually adding "claudeCode.enableAutoMode": true to settings.json produces an "Unknown Configuration Setting" warning, confirming the setting key is not registered in the extension

The CLI works correctly: claude --enable-auto-mode launches successfully and the session correctly shows "Opus 4.7 (1M context) · Claude Max."

What Should Happen?

• An "Enable auto mode" toggle should appear in Settings → Extensions → Claude Code
• "Auto" should appear as a permission mode option when cycling with Shift+Tab in an extension session
• Opus 4.7 should be selectable in the extension's model picker for Max plan users
• claudeCode.enableAutoMode should be a recognized configuration key

Error Messages/Logs

"Unknown Configuration Setting" warning when adding "claudeCode.enableAutoMode": true to settings.json

Steps to Reproduce

1. Install the Claude Code VS Code extension v2.1.140 from the marketplace
2. Ensure the Claude Code CLI is also v2.1.140 (run claude --version)
3. Sign in with a Max plan account (direct via Anthropic, not Bedrock/Vertex/Foundry)
4. Open VS Code Settings → Extensions → Claude Code → observe there is no "Enable auto mode" toggle
5. Open a Claude Code session in the extension sidebar and press Shift+Tab repeatedly → observe auto mode is not in the cycle
6. Open the model picker → observe Opus 4.7 is not listed
7. Open settings.json and add "claudeCode.enableAutoMode": true → observe "Unknown Configuration Setting" warning
8. For comparison: open a terminal and run claude --enable-auto-mode → observe it launches successfully on Opus 4.7 / Claude Max

Claude Model

Opus

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

2.1.140

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

The CLI and the VS Code extension are both on v2.1.140 and are signed in to the same Max plan account. Auto mode works in the CLI but not in the extension, suggesting the VS Code extension v2.1.140 has not yet shipped the auto mode UI/setting/model rollout for Max users that the CLI of the same version already has.